Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DM28C256-250 B found under Microcircuit Memory by Seeq Technology Inc. The National Stock Number assigned to this part is 5962013065562, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DM28C256-250 B.